8161490 has 16 divisors (see below), whose sum is σ = 14878080. Its totient is φ = 3222960.

The previous prime is 8161487. The next prime is 8161493. The reversal of 8161490 is 941618.

It is an interprime number because it is at equal distance from previous prime (8161487) and next prime (8161493).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8161493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4376 + ... + 5955.

It is an arithmetic number, because the mean of its divisors is an integer number (929880).

Almost surely, 2^8161490 is an apocalyptic number.

8161490 is a deficient number, since it is larger than the sum of its proper divisors (6716590).

8161490 is a wasteful number, since it uses less digits than its factorization.

8161490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10417.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 8161490 is about 2856.8321616784. The cubic root of 8161490 is about 201.3367949885.

The spelling of 8161490 in words is "eight million, one hundred sixty-one thousand, four hundred ninety".